Analyzing problem-behavior trajectories can be difficult. The data are generally categorical and often quite skewed, violating distributional assumptions of standard normal-theory statistical models. In this article, the authors present several currently available modeling options, all of which make appropriate distributional assumptions for the…

This study investigated teacher educators', prospective teachers', and K-12 teachers' opinions about the effectiveness of ICT related courses and the ways to improve the courses in Turkey's pre-service teacher education programs. The researchers used both quantitative and qualitative research approaches within the data collection and analysis…